Hi Nezih,
You did an impressive job! I see no seam lines or gaps, excellent workmanship!

The nose cone looks to be the exception.
The canopy does not seem to fit well, but if this kit's canopy is a multi-part piece like the 1/48 JU-88 I built, then it is hard to mount. Looking at photos of -88s, I noted the windscreen had a noticeable gap in real life. The rear part of the canopy was jettisonible, from the photos I've seen of abandoned one, so the gaps aren't a big thing to me.
The muddy wheels is good. Even in the Reich, many aerodromes were sod. In Russia, a paved runway seemed few and far between. So I think it is proper for these wheels to be very dirty, even with muck on the nacelle behind the wheels, where the spinning wheel would fling filth.
Polarbear's suggestion about the antenne will improve the model, too.
The topside weathering enhances the appearance. However, I am not a proponent of weathering all panel lines; I would suggest that you tone down the underside.
Looking forward to your next model!